Underground grounding resistance on-line monitoring device

Abstract

The utility model discloses an underground grounding resistance on-line monitoring device, which relates to the field of resistance detection equipment and comprises a resistance monitor, and a pair of support frame bodies capable of sliding along opposite directions are arranged below a shell of the resistance monitor. The two pairs of supporting frame bodies each comprise a horizontally-distributed movable plate, inclined extending plates facing the opposite directions and a supporting plate fixed to the bottom ends of the inclined extending plates. According to the utility model, the supporting frame body is arranged, and the supporting frame body can extend out of the lower part of the shell of the resistance monitor to provide stable support for the resistance monitor, so that the adverse effects of ground dirt and ground vibration on the resistance monitor during the operation of large-scale construction machinery are reduced. Meanwhile, the resistance monitor is further provided with the grounding plate with the angle capable of being adjusted in a rotating mode, the grounding plate can avoid a protruding part on the ground when covering the uneven ground, the skewing phenomenon when the supporting frame body makes contact with the ground is effectively avoided, and the stability of the resistance monitor in the working environment with the uneven terrain is improved.

Description

Technical Field

[0001] The utility model relates to the field of resistance detection equipment, and particularly relates to an underground grounding resistance online monitoring device. Background Art

[0002] A resistance monitoring instrument is mainly an instrument for measuring the conductivity of an object. Resistance monitoring instruments are widely used in occasions such as electrical safety inspections and the completion inspections of grounding projects. There are many types of resistance monitoring instruments. Currently, insulation resistance monitoring instruments, surface resistance monitoring instruments, etc. are designed and manufactured on the market.

[0003] For the existing resistance online monitoring devices applied to the underground construction environment, most of the resistance online monitoring devices are placed on the ground to continuously carry out resistance monitoring work for a long time. If the ground in the underground construction environment is dirty, it is easy to contaminate the resistance online monitoring device. Further, in the underground construction environment, the vibration generated when large construction machinery operates will cause the ground to vibrate, and the stability of the resistance online monitoring device is easily affected. Moreover, most of the terrain in the underground construction environment is uneven. Under the influence of the vibration force, the resistance online monitoring device is more likely to shake and shift, which will easily affect the stability and accuracy of the monitoring work. Summary of the Utility Model

[0004] In view of the above problems, the present application provides an underground grounding resistance online monitoring device.

[0005] To achieve the above object, the present application provides the following technical solution: An underground grounding resistance online monitoring device includes a resistance monitor. A pair of support frames that can slide in opposite directions are provided below the housing of the resistance monitor. Both pairs of support frames include a horizontally distributed moving plate, obliquely extending plates facing opposite directions, and a support plate fixed to the bottom end of the obliquely extending plate.

[0006] A gap is formed at the connection position between the support plate and the obliquely extending plate. A rotatable grounding plate is provided in the gap, and the grounding plate has a corrugated structure.

[0007] Further, extension plates are provided on both obliquely extending plates. The extension plates are located above the support plate, and a plurality of connecting rods are provided on both extension plates. The bottom end of the connecting rod is connected to the grounding plate through a rotating shaft.

[0008] First pressure springs and second pressure springs are distributed on both sides of the connecting rod. When the grounding plate rotates around the rotating shaft towards both sides of the connecting rod, the first pressure spring and the second pressure spring make corresponding deformation responses as the grounding plate rotates.

[0009] Further, alignment sleeves are provided at the ends of the moving plates close to each other. The alignment sleeves corresponding to each other on the two moving plates penetrate through the same guiding rod. When the moving plates slide back and forth, the corresponding alignment sleeves move linearly along the distribution direction of the guiding rod.

[0010] Further, a channel is formed in the guiding rod, and a roller group is arranged inside the channel. When the alignment sleeve slides along the distribution direction of the guiding rod, a plurality of rollers in the roller group are in rolling contact with the alignment sleeve.

[0011] Further, intercepting rings for restricting the detachment of the alignment sleeve are provided at both ends of the guiding rod, and the center of the guiding rod is provided with a resistance monitor through a hoop.

[0012] Further, handles exposed outside the resistance monitor are provided at both ends of the moving plate.

[0013] In summary, the technical effects and advantages of the present utility model are as follows:

[0014] The present utility model is provided with a support frame body which can extend below the housing of the resistance monitor to provide stable support for the resistance monitor, reducing the adverse effects of ground dirt and ground vibration generated during the operation of large construction machinery. At the same time, a grounding plate that can be rotated to adjust the angle is also provided. When the grounding plate covers an uneven ground, it can avoid the raised parts on the ground, effectively preventing the support frame body from tilting when it contacts the ground, and improving the stability of the resistance monitor in a working environment with uneven terrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 2 It is a structural schematic diagram of the second perspective of the present utility model.

[0018] Figure 3 It is a structural schematic diagram of the extended plate of the present utility model after partial sectioning.

[0019] Figure 4 For the present utility model Figure 3 The enlarged structural schematic diagram at position A.

[0020] Figure 5This is a schematic structural diagram when the first support frame of the utility model is retracted inside the resistance monitor.

[0021] In the figure: 1. Resistance monitor; 2. Support frame; 21. Moving plate; 22. Obliquely extending plate; 23. Support plate; 3. Grounding plate; 4. Extension plate; 5. Connecting rod; 6. First compression spring; 7. Second compression spring; 8. Alignment sleeve; 9. Guide rod; 10. Roller group; 11. Intercepting ring; 12. Hoop ring; 13. Handle. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Example: Refer to Figures 1-5 As shown in a downhole grounding resistance on-line monitoring device, including a resistance monitor 1. When the resistance monitor 1 is performing resistance monitoring work underground, in order to prevent the resistance monitor 1 from directly contacting the ground, reduce ground dirt and the adverse effects of ground vibration generated by large construction machinery during operation, a pair of support frames 2 that can slide in opposite directions are provided below the housing of the resistance monitor 1. The two pairs of support frames 2 each include a horizontally distributed moving plate 21, obliquely extending plates 22 facing in opposite directions, and a support plate 23 fixed to the bottom end of the obliquely extending plate 22. According to actual needs, the support frame 2 can extend below the housing of the resistance monitor 1 to expand the support surface and provide stable support for the resistance monitor 1.

[0024] If the terrain in the underground working environment of the resistance monitor 1 is uneven, the single plate structure of the support plate 23 is prone to skew when contacting the ground. For example, if it is pressed on a raised part of the ground, the flat plate structure is likely to be skewed. In order to maintain the stability of the resistance monitor 1 operating in an uneven terrain working environment. A gap can be formed at the connection position between the support plate 23 and the obliquely extending plate 22. A rotatable grounding plate 3 is provided in the gap. After the grounding plate 3 rotates to adjust the angle, it covers the uneven ground and avoids the raised parts on the ground, effectively preventing the skew phenomenon when the support plate 23 contacts the ground. At the same time, the grounding plate 3 has a corrugated structure. This can increase the friction between itself and the ground and further improve the stability of the resistance monitor 1 in the working state.

[0025] As Figure 3 、 Figure 4As shown, extension plates 4 are provided on the obliquely extending plate 22. The extension plates 4 are located above the support plate 23, and a plurality of connecting rods 5 are provided on the extension plates 4. The bottom ends of the connecting rods 5 are connected to the grounding plate 3 through rotating shafts.

[0026] On both sides of the connecting rod 5, a first pressure spring 6 and a second pressure spring 7 are distributed. When the grounding plate 3 rotates around the rotating shaft towards both sides of the connecting rod 5, the first pressure spring 6 and the second pressure spring 7 make corresponding deformation responses as the grounding plate 3 rotates.

[0027] When the grounding plate 3 undergoes an angular change to adapt to an uneven ground, the elastic potential energy of the first pressure spring 6 and the second pressure spring 7 can press the grounding plate 3 in an inclined state, improving the tightness of the connection between the grounding plate 3 and the ground, and avoiding large - amplitude shaking, offset and other phenomena of the grounding plate 3. During underground construction, it can effectively reduce the adverse effects of the vibration force generated by the construction machinery on the ground on the connection between the grounding plate 3 and the ground, and further improve the stability of the resistance monitor 1 during operation in the construction environment.

[0028] As Figure 2 、 Figure 3 shown, on the relatively close ends of the moving plates 21, alignment sleeves 8 are provided. The alignment sleeves 8 corresponding in position on the two moving plates 21 are penetrated by the same guiding rod 9. When the moving plates 21 slide reciprocally, the alignment sleeves 8 connected to them move linearly along the distribution direction of the guiding rod 9. Further, the support frame 2 can move along a straight line until it smoothly slides out from under the housing of the resistance monitor 1 to provide support for the resistance monitor 1 at an uneven position.

[0029] As Figure 2 shown, in order to reduce the jamming phenomenon when the alignment sleeve 8 moves along the distribution direction of the guiding rod 9, a channel is opened on the guiding rod 9, and a roller group 10 is provided inside the channel. When the alignment sleeve 8 slides along the distribution direction of the guiding rod 9, a plurality of rollers in the roller group 10 are in rolling contact with the alignment sleeve 8. This reduces the friction between the alignment sleeve 8 and the guiding rod 9 and improves the smoothness of the movement of the alignment sleeve 8 and the support frame 2.

[0030] As Figure 2 shown, in order to prevent the support frame 2 from detaching from the guiding rod 9, intercepting rings 11 that can limit the detachment of the alignment sleeve 8 are provided at both ends of the guiding rod 9, and the center of the guiding rod 9 is provided on the resistance monitor 1 through a hoop 12 to maintain the stability of the guiding rod 9 and the support frame 2.

[0031] As Figure 2As shown, during the process of positioning the resistance monitor 1, in order to facilitate the staff to quickly pull the support frame 2 according to the underground terrain, handles 13 exposed outside the resistance monitor 1 are provided at both ends of the moving plate 21. By manipulating the handles 13, it is convenient to drive the support frame 2 to slide out from under the housing of the resistance monitor 1.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An on-line monitoring device for underground grounding resistance, comprising a resistance monitor (1), characterized in that: A pair of support frames (2) that can slide in opposite directions are provided below the housing of the resistance monitor (1). Both pairs of the support frames (2) include a horizontally distributed moving plate (21), obliquely extending plates (22) facing opposite directions, and a support plate (23) fixed to the bottom end of the obliquely extending plate (22). A gap is formed at the connection position between the support plate (23) and the obliquely extending plate (22). A rotatable grounding plate (3) is provided in the gap, and the grounding plate (3) has a corrugated structure.

2. The on-line monitoring device for underground grounding resistance according to claim 1, wherein: Extension plates (4) are provided on both of the obliquely extending plates (22). The extension plates (4) are located above the support plate (23), and a plurality of connecting rods (5) are provided on both of the extension plates (4). The bottom ends of the connecting rods (5) are connected to the grounding plate (3) through a rotating shaft. First pressure springs (6) and second pressure springs (7) are distributed on both sides of the connecting rod (5). When the grounding plate (3) rotates around the rotating shaft towards both sides of the connecting rod (5), the first pressure springs (6) and the second pressure springs (7) make corresponding deformation responses as the grounding plate (3) rotates.

3. The on-line monitoring device for underground grounding resistance according to claim 1, characterized in that: Alignment sleeves (8) are provided at the ends of the moving plates (21) that are close to each other. The alignment sleeves (8) corresponding in position on the two moving plates (21) penetrate through the same guide rod (9). When the moving plates (21) slide reciprocally, the alignment sleeves (8) connected thereto move linearly along the distribution direction of the guide rod (9).

4. The on-line monitoring device for downhole grounding resistance according to claim 3, characterized in that: A channel is formed on the guide rod (9), and a roller group (10) is provided inside the channel. When the alignment sleeve (8) slides along the distribution direction of the guide rod (9), a plurality of rollers in the roller group (10) are in rolling contact with the alignment sleeve (8).

5. The on-line monitoring device for underground grounding resistance according to claim 3, characterized in that: Blocking rings (11) that can prevent the alignment sleeve (8) from falling off are provided at both ends of the guide rod (9), and the center of the guide rod (9) is provided on the resistance monitor (1) through a hoop (12).

6. The on-line monitoring device for underground grounding resistance according to claim 1, wherein: Handles (13) that protrude to the outside of the resistance monitor (1) are provided at both ends of the moving plate (21).

Images